SOLUTION: a merchant has coffee worth $5 a pound that she wishes to mix with 50 pounds of coffee worth $9 a pound to get a mixture worth $6 a pound. how many pounds of the $5 coffee be used?
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Question 422895: a merchant has coffee worth $5 a pound that she wishes to mix with 50 pounds of coffee worth $9 a pound to get a mixture worth $6 a pound. how many pounds of the $5 coffee be used?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
5m+50(9)=6(m+50)
5m+450=6m+300
m=150
She needs 150 lbs. of $5 coffee for her mix..
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